Laela Nur Dayanti and Titik Suryani 2025. Quality of Kefir Combination Between Sweet Corn Milk and Skim Milk on Variations of Sugar Types and Fermentation Duration. Quagga: Jurnal Pendidikan dan Biologi. 17, 1 (Jan. 2025), 9–15. DOI:https://doi.org/10.25134/quagga.v17i1.334.